Messages in this thread Patch in this message | | | From | "Ira W. Snyder" <> | Subject | [PATCH 2/2] can: janz-ican3: fix support for older hardware revisions | Date | Tue, 11 Sep 2012 15:58:15 -0700 |
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From: "Ira W. Snyder" <iws@ovro.caltech.edu>
The Revision 1.0 Janz CMOD-IO Carrier Board does not have support for the reset registers. To support older hardware, the code is changed to use the hardware reset register on the Janz VMOD-ICAN3 hardware itself.
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> --- drivers/net/can/janz-ican3.c | 4 +--- 1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c index 98ee438..7edadee 100644 --- a/drivers/net/can/janz-ican3.c +++ b/drivers/net/can/janz-ican3.c @@ -1391,7 +1391,6 @@ static irqreturn_t ican3_irq(int irq, void *dev_id) */ static int ican3_reset_module(struct ican3_dev *mod) { - u8 val = 1 << mod->num; unsigned long start; u8 runold, runnew; @@ -1405,8 +1404,7 @@ static int ican3_reset_module(struct ican3_dev *mod) runold = ioread8(mod->dpm + TARGET_RUNNING); /* reset the module */ - iowrite8(val, &mod->ctrl->reset_assert); - iowrite8(val, &mod->ctrl->reset_deassert); + iowrite8(0x00, &mod->dpmctrl->hwreset); /* wait until the module has finished resetting and is running */ start = jiffies; -- 1.7.8.6
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